/Engine/Plugins/Experimental/ScriptableToolsFramework/Source/ScriptableToolsFramework/Public/ScriptableInteractiveTool.h
Allow the Tool to do any custom screen space drawing
virtual void DrawHUD ( [FCanvas](API\Runtime\Engine\FCanvas) * Canvas, [IToolsContextRenderAPI](API\Runtime\InteractiveToolsFramework\IToolsContextRenderAPI) * RenderAPI )